summit racing has a full cat back exhaust kit for a ZJ V8, its a complete kit including tubing starting at the Y-pipe, and a welded turbo style flow through muffler, sounds great on mine and a noticeable power increase and they cost $179, mine was 199.77 shipped bolts right up with clamps, got em welded at a local shop for 30 bucks

summit racing has a full cat back exhaust kit for a ZJ V8, its a complete kit including tubing starting at the Y-pipe, and a welded turbo style flow through muffler, sounds great on mine and a noticeable power increase and they cost $179, mine was 199.77 shipped bolts right up with clamps, got em welded at a local shop for 30 bucks

many people have posted their before and after exhaust clips on you tube. you'll get an idea of what a variety of different mufflers, bottles, and straight pipes sound like. flowmaster 40 would be my vote